Irrigated brush



R. H. BAKER.

RRIGATED BRUSH.

APPLICATION FILED Nov. lo, 1917.

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@moa/nto@ am?? /w ad@ @Hof/daag' ROLLYN H. BAKER, OF DAYTON, OHIO.

IRRIGATED BRUSH.

Speccation of Letters Patent.

Patented Apr. 13, 1920.

Application led November 10. 1917. Serial No. 201.268.

T0 all whom t may concern Be it known that I, ROLLYN I-I. BAKER, a citizen of the United States, .residing at Dayton, in the county of Montgomery and State of Ohio, have invented a new and useful Irrigated Brush, of which the followlng is a specification.

My invention relates primarily to brushes for washing wire wheels on automobiles, although it is adapted to numerousl other uses. One of its objects is to furnish an ample supply of waterwith which to irrigate the brush. Another object 1s to supply the water in an annular stream surrounding the brush, rendering the water more available for iiushing the dirt away than where the water is supplied in a number of small jets. Another object is to afford a considerable measure of support to the bristles, supplemental to their regular setting, thus lengthening the life of the brush. Another object is to enable the brush to enter and be capable of the maximum freedom of movement in small spaces, and be free from projections or shoulders which will impede its withdrawal from such close places. This is accomplished by making the handle compara-tively small in diameter and connecting it to the brush by a conical section which cannot catch against other objects. To add to its adaptability and en` able it to reach into spaces which would otherwise be inaccessible the handle is bent close to the brush so that the brush extends at an angle. If preferred the overhanging portion of the water jacket may be'contracted so as to concentrate the stream of water around the brush. This contraction also facilitates insertion of the brush in close places.

Figure 1 of the accompanying drawing shows my brush complete and attached to a hose.

Fig. 2 is a longitudinal sectional view of one form of brush.

Fig. 3 is a transverse section on line 3 3 of Fig. 2.

Fig. 4 is a longitudinal sectional view of a modified type of brush.

Referring now to Figs. 1, 2 and 3; 10 represents the body of the brush in which the bristles 11 are secured in any suitable manner. The body is attached to a socket member 12 which is threaded to receive the handle 13. The handle is considerably smaller in diameter than the brush and is bent so that the brush forms an angle with reference to the handle as will be readily understood by reference to Fig. 1. The socket 12 is conical as is also the shoulder portion of the handle against which it impinges on being screwed onto the handle. Surrounding the body 10 and attached to the socket member 12 is a sleeve or water jacket 14 enough larger than the body 10 to form an annular space 15 therebetween. The water jacket extends beyond the body and covers the bristles for a portion of their length, and in the structure now under consideration this end of the jacket is contracted as at 16. The portion of the body back of the bristle setting is hollow and together with the socket member 12 forms a chamber into which water flows through the hollow handle 13. The wall of this hollow portion of the body is perforated to allow water to flow to the annular space 15 whence it is ejected in an annular stream surrounding the bristle tuft. The contraction 16 throws the stream against the bristle tuft and also increases the velocity of the stream at this point. For the purpose of supporting the outer end of the water jacket and maintaining the annular space 15, I place a few webs 17 in the space as is clearly seen in Fig. 3. These materially increase the mechanical strength of the brush without affecting the flow of the water.

In Fig. 4 the structure is modified to the extent that the perforated portion 20 of the body is separated from the bristle bearing part 21, and bulkhead 22 is secured in the end of the perforated portion 20 and has a tapped hole into which is screwed a stud 23 fixed in the member 21. By this means the brush is made detachable so that it can be renewed. In this brush the contraction at the end of the water jacket 14 is omitted. Obviously, it may be included if desired or, on the other hand, it may be omitted in the structure illustrated in Fig. 2. Other modifications might occur to any skilled mechanic, and it is not to be understood that my invention is limited to the precise structures illustrated, it being limited only by the scope of my claims which are as follows:

y 1. In an irrigated brush, a body carrying bristles, said body having a hollow chamber at the rear with perforated sides and an aperture threaded to receive a hollow handle whereby water may be sup plied to the chamber, a .jacket surrounding the body and attached thereto back of said perforated portion, there being an annular space between the body and jacket for the flow of Ywater to irrigate the brush, and radial members connecting the body and jacket so as to support the latter and maintain the annular space.

2. In an irrigated brush, a body carry'- ing bristles, said body having a hollow chamber at the rear with perforated sides, a hollow handle connected thereto, anda jacket surrounding the body and attached thereto back of said perforated sides, but spaced therefrom so as to permit water passing through the perforations to flow out between the body and jacket.

`ROLLYN H. BAKER. Y 

